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Herpes simplex 2 genomes can be divided into two groups: one is globally distributed and the other is mostly limited to sub Saharan Africa. [59] The globally distributed genotype has undergone four ancient recombinations with herpes simplex 1. It has also been reported that HSV-1 and HSV-2 can have contemporary and stable recombination events ...
Herpes simplex, often known simply as herpes, is a viral infection caused by the herpes simplex virus. [5] Herpes infections are categorized by the area of the body that is infected. The two major types of herpes are oral herpes and genital herpes , though other forms also exist.
Herpes simplex virus 1 infects humans, most often as cold sores. It is very common and contagious; about 67% of the world population under the age of 50 has Herpes simplex virus 1. [5] It is often acquired orally during childhood.
Herpetic gingivostomatitis is an infection caused by the herpes simplex virus (HSV). The HSV is a double-stranded DNA virus categorised into two types; HSV-1 and HSV-2.HSV-1 is predominantly responsible for oral, facial and ocular infections whereas HSV-2 is responsible for most genital and cutaneous lower herpetic lesions.
Herpes labialis infection occurs when the herpes simplex virus comes into contact with oral mucosal tissue or abraded skin of the mouth. [17] Infection by the type 1 strain of herpes simplex virus (HSV-1) is most common; however, cases of oral infection by the type 2 strain are increasing. [14]
[1] [2] [3] The members of this family are commonly known as herpesviruses. The family name is derived from the Greek word ἕρπειν (herpein 'to creep'), referring to spreading cutaneous lesions, usually involving blisters, seen in flares of herpes simplex 1, herpes simplex 2 and herpes zoster . [4]
Herpes gladiatorum is a skin infection primarily caused by the herpes simplex virus. The virus infects the cells in the epidermal layer of the skin. The initial viral replication occurs at the entry site in the skin or mucous membrane. [7] The infections caused by a HSV Type 1 virus may be primary or recurrent. [8]
It is estimated to affect at least 1 in 500,000 individuals per year, [1] and some studies suggest an incidence rate of 5.9 cases per 100,000 live births. [2] About 90% of cases of herpes encephalitis are caused by herpes simplex virus-1 (HSV-1), the same virus that causes cold sores.